Received my unit today. I’ve watched videos and read the manual from cover to cover and have to agree. When you engage the preset mode, everything goes dead as far as being able to adjust anything. And when you disengage the preset mode, it does not bring up the settings that were in the preset you just had opened. I see no way to edit an existing preset and overwrite it. You can create a new patch from scratch and overwrite a preset slot, but that appears to be it. This is a bit frustrating.